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Biology 184 > Fungi > Flashcards

Flashcards in Fungi Deck (18):
1

How do Fungi get their nutrition?

Decomposers, parasites, predators, mutual/neutral symbiont.

2

What three characteristics distinguish fungi from plants?

Chitinous cell walls, hyphae, spores.

3

What do septate hypha have that coenocytic hypha don't?

A septum.

4

Fungi are ____ heterotrophs that use ____ to acquire nutrients

Absorptive, hyphae.

5

What do most fungi use to hydrolyze their food?

Enzymes.

6

What are sapotrophs?

Fungi that absorb dead matter.

7

What are mycorrhizal fungi? Why are they necessary?

Symbiotic fungi, allow plants to more easily absorb nutrients from soil, especially nitrates.

8

What are endophytes?

Fungi that are found in the stems of plants, protect against herbivory as well as other functions.

9

Who are the basidiomycota?

The most populous group of fungi, contains most obvious fungi.

10

Define plasmogamy.

Fusion of two hyphae.

11

Define karyogamy.

Fusion of the two gametic nuclei.

12

The life cycle of most basidiomycotes is ____and highly unusual. There can be many rounds of ___.

Sexual. Mitosis.

13

Define dikaryotic hyphae.

Hyphae with two haploid nuclei in each compartment.

14

What are mushrooms? What are they made from?

Fruiting structures (basidiocarps), dikaryotic hyphae.

15

On a basiocarp, ____ (basidiospores) are produced on ___ (basidia, s. basidium) following meiosis

Sexual spores, small
bases.

16

Why are fungi filamentous in growth?

Increased surface area.

17

What is a dikaryon. How does this differ from a diloid cell? How is it similar?

A cell that contains two haploid nuclei, differs in that a diploid cell has one nucleus, similar in two sets of chromosomes.

18

Distinguish detween a fungal hypha and a mycelium.

A hypha is a branched filament, mycelium is a bundle of hypha.